CITIZEN SRP-285N - Manual (Page 15)

E – 14
File name : CBM_SR285,A_HDBSR285T19_English.doc
version : 2010/04/26
„ Trigonometric / Inverse-Tri. Functions
The calculator provides standard trigonometric functions and inverse
trigonometric functions - sin, cos, tan, sin
–1 , cos –1 and tan –1 . See
Example 35~37.
(Note) : When using those keys, make sure the calculator is set
for the angle unit you want.
„ Hyperbolic / Inverse-Hyp. Functions
The calculator uses [ 2nd ] [ HYP ] to calculate the hyperbolic
functions and inverse- hyperbolic functions – sinh, cosh, tanh,
sinh
–1 , cosh –1 and tanh –1 . See Example 38~39.
(Note) : When using those keys, make sure the calculator is set
for the angle unit you want.
„ Coordinates Transformation
Pressing [ 2nd ] [ R P ] displays a menu to convert rectangular
coordinates to polar coordinates or vice versa. See Example
40~41.
Rectangular Coordinates Polar Coordinates
x + y i = r (cosθ+ i sinθ)
(Note) : When using those key, make sure the calculator is set
for the angle unit you want.
„ Probability
z Pressing [ PRB ] displays the probability menu. See Example
42~46. With the following functions :
nPr Calculates the number of possible permutations of n item
taken r at a time.
nCr Calculates the number of possible combinations of n
items taken r at a time.
! Calculates the factorial of a specified positive integer n ,
where n ≦ 69.
RANDM Generates a random number between 0 and 1.
RANDMI Generates a random integer value between two specified
integers, A and B, where A ≦ random value ≦ B